Window-operating mechanism.



R. A. LAGKEY. wmnow OPERATING MECHANISM.

APPLICATION FILED MAY 5, 1911.

1, 1 1 2,073. Patented Se t. 29, 1914.

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- @Majm/ RIA. LACKEY. WINDOW OPERATING MECHANISM.

APPLIOATION FILED MAY 5, 1911.

Patented Sept. 29, 1914.

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ROBERT A. LACKEY, oFoAK PARK, inLiiivo s.

WINDOW-OPERATING MECHANISM.

Specification of Letters Patent.

Patented Sept. 29, 1914.

i Application filed May 5,1911. Serial No. 625,218.

To all whom it may concern: Be it known that I, ROBERT A. .LACKEY, a citizen of the United States, residlng at Oak Park, in the county of Cookand State of Illinois, have invented certain new and useful Improvements in Window-Operating Mechanism, of which the following is a specification. 1

This invention relates to window operating mechanisms and aims to produce a device which will occupy but little space on the interior of a building adj acent the sashes to be operated and which will simultaneously open and close a series of window sashes and will normally lock themin closed position.

Another object of the invention is to accomplish the foregoing result by a pneumatically operated mechanism which will have a positive and steady action and which can be readily and easily controlled from a point remote from the windows to be operated.

Other objects and advantages of this in:

vention will be apparent as it is better understood by reference to the following description when taken in connectionwith the accompanying drawings illustrating one preferred embodiment thereof.

Referring to the drawings-Figure 1 is a side elevation of a series of window sashes equipped with one form of my improved sash operating devices. elevation of the device showing the, window in open position; and Fig. 3 is a view similar to Fig. 2 showing the window in closed position.

On the drawings, 5 designates a fragmen-. tary section of the side wall of a building having window openings 6 equipped with frames of any preferred construction and having wooden sashes 7 swingingly mounted therein on pivots 8. It will be understood that these windows are usually arranged in series extending from end to end of the sidewalls of the building. My present invention aims to simultaneously open and close all of the windows in one wall. I

Between the windows at intervals are mounted brackets 9 (but one being shown in the drawings), which are secured by vertically and horizontally arranged base plates 10 and 11, respectively, to the building wall between the windows. A shaft 12 extending along the series of windows is rotatably mounted in the brackets 9 and adjacent to each window one or more arms 13 are adj ust- Fig. 2 is an end ably fixed by set-screws 11' or otherwise, on

this shaft. Ears 15 are fixed to the window sashes and links 16 are piv'otally conected at each end with the arms 13 and the cars 15, respectively, whereby .rotation of the shaft in a clockwise direction, viewing Figs. 2 and 3, will force the bottom of each sash outwardly into the open position shown in Fig.

2, while reverse movement of the shaft will bring the window to closed position as shown in Fig. 3.

A cylinder 17 is mounted adjacent the shaft 12 and, if preferred, may be connect ed directly with the bracket 9 as shown on the drawings; although it will be obvious that the cylinder might be supported in any other preferred manner. A piston 18 is arranged to reciprocate within the cylinder and a piston rod 19 fixed to said piston proects beyond the upper end of the cylinder and 1s guided in its reciprocatory movements'by a guide 20 projecting from the base plate 10. Air supply and exhaust pipes 21 communicate with the cylinder on either side of the piston whereby the piston may be actuated by admitting air under pressure above and below the piston as occasion requires. The pipes may be connected with any suitable source of air supply under pressure and the admission and discharge of air to and from the cylinder may be controlled by valves of any suitable type locatedat a distance remote from the cylinder, if de sired.

An arm 22 is fixed on the shaft 12 adjacent the piston rod and a link 23 pivotally connected at one end with the arm and at its other end with a collar 24 mounted on a piston rod, connects the arm and rod so that the shaft will be rotated upon movement of the piston. Attention is directed to the fact that when the sash is in the closed position shown in Fig. 3, the operating arm 22 pro jects downwardly in substantially parallel relation to the piston rod 19 and the connecting link 23 isdisposed in practically horizontal position between the arm and the rod. This construction and arrangement of the parts serve to automatically lock and retain the sashesin closed position so that they can not be opened by application of force to the sash itself and can only be swung outwardly by movingthe piston upwardly. It is manifest that no amount of force exerted upon the sash itself can swing it to open position because. any rotation of the shaft 12 ina clockwise direction viewing Fig. 3, will be resisted by the link 23 which, in turn, will thrust laterally against the piston rod 19 so that there will be no tendency of the rod to move upwardly and permit the sash to open. The sashes are thus effectively locked whenever they are brought to closed position and they can only be opened by imparting an upward movement to the piston and thisis most effectively accomplished by admitting air to'the cylinder below the piston. It will be obvious thatthe shaft 12 may be of any required length and that as many air cylinders can be employed as may be found necessary, depending upon the number and size of the windows to be operated.

, WVhile I have shown and described one specific embodiment of my invention it will be obvious that various mechanical changes in the size, shape, proportion and arrangement of the various parts may be resorted tov without departing from the spirit or sacrificing any of the material advantages of the invention.

1 claim:

1. In a window operating mechanism, the combination of a rotatably mounted shaft,

a pneumatic device for rotating said shaft,

means locking" the same in a predetermined positlon, an arm'fixed on the shaft, and

means connected to said arm and awindow sash for operating said sash upon rotation of the shaft.

2. In a window operating mechanism, the combination of a rotatably' mounted shaft, means for rotating the shaft, and connec' tions between the shaft and 'a sash automatically locking the shaft against rotation shaft" and a window sash whereby the sash will be operated upon rotation of the shaft said link being disposed substantially at right. angles to both the arm and the pneumatic device when the sash is in closed position, whereby the sash will be locked against opening movement.

5. In a window operating mechanism, the

combination of a rotatably mounted shaft,

a pneumatic device for rotating said shaft,

an arm fixed on said. shaft and normally disposed when the sash is in closed position in parallel relation to the path of travel of the pneumatic device, a link connecting said pneumatic device and said arm whereby operation of said pneumatic device will rotate said shaft, :1. second arm fixed on said shaft, and a link connecting said second arm with a window sash whereby said sash will be operated upon rotation of the shaft.

6. In awindow operating mechanism, the combination of a rotatably mounted shaft, an arm fixed thereon, a cylinder, a piston arranged therein, a link connecting the free end of said arm with the piston rod whereby the shaft will be rotated upon actuation of the piston, the said arm being substantially parallel to the said piston rod when the piston'rod is in one extreme position,

tions between said shaft and a window sash,

an arm fixed on said shaft and normally dis- ,posed in parallel relation with the piston rod when the sash is in closed position, and

a link connecting the free end of said arm with the piston rod whereby the sash is normally locked in closed position.

8. In a window operating mechanisnnthe combination of a vertically disposed cylinder, a piston disposed therein, a piston rod projecting beyond the end of the cylinder, a bracket a shaft rotatabl mounted therein :an operating arm fixed on said shaft, :1. link connecting said arm with the piston rod, a second-arm fixed on said shaft at an acute angle with said first mentioned arm, and a link connecting said second arm with a window sash whereby the sash will be operated upon movement of the piston in the cylinder.

9. In a window operating mechanism, the combinatlon of a rotatably mounted shaft,

an arm fixed thereon, a cylinder, a piston arranged therein, a link connecting the free end of the said arm with the said plston rod -whereby the shaft will be rotated upon actuation of the piston, and operative connections between the said shaft and window sash for transmittmg the movement of the shaft to the sash, the said link and piston rod being arranged to dispose the same at right angles to each other when the window is closed to prevent actuation of the piston rod by manipulation of the window.

1 ROBERT A. LACKEY. Witnesses IRA J. VILSON, M. ROBERTSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

